US256379A - Carl rumpff - Google Patents
Carl rumpff Download PDFInfo
- Publication number
- US256379A US256379A US256379DA US256379A US 256379 A US256379 A US 256379A US 256379D A US256379D A US 256379DA US 256379 A US256379 A US 256379A
- Authority
- US
- United States
- Prior art keywords
- rumpff
- carl
- germany
- acid
- kilograms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002253 acid Substances 0.000 description 6
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-Naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 4
- 229950011260 betanaphthol Drugs 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 229940072033 potash Drugs 0.000 description 4
- 235000015320 potassium carbonate Nutrition 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
Definitions
- a My invention relates to a new yellow dyestufl' which results from the reaction of nitroalpha-monosulphonic acid with carbonateot' potash.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Description
UNITED STATES PATENT 7 OFFICE@- oARL RUMPFF, or APRATH, NEAR E'LBERFELD, PRUSSIA, GERMANY.
MANUFACTUREOF DYE-STUFF OR COLORING-MATTER.
\ SPECIFICATION forming part of Letters Patent No. 256,379, dated April 11, 1882.
' Application filed January 13, 1882. (No speoimensl Patented in England March 21, 1381, in France March 31, 1881, in Belgium April 15, 1881, and in Germany October 11, 1881.
T 0 all whom it may concern:
Be it known that I, CARL RUMPFF, residing at Aprath, near Elberfeld, in the Kingdom of Prussia and Empire of Germany, have invented anew and useful Improvement in the Mannfacture of Dye-Stuffs or Coloring-Matters, of which the following is a specification.
A My invention relates to a new yellow dyestufl' which results from the reaction of nitroalpha-monosulphonic acid with carbonateot' potash.
The preparation and properties of my alphamonosulphonic acid of beta-naphthol is described in my application for patent filed April 8, 1881.
I dissolve ten kilograms of crystallized alpha-monosulphonic acid of beta-naphthol in twenty kilograms of water, and by boiling evaporate the spirit which was present in the crystals of theacid. I then add fifteen kilograms of nitric acid of about fifty per cent.
strength at a temperature of 40 to 50 centigrade. After standing for several days at a temperature of 30 to 40 centigrade the nitration is finished, whereupon I neutralize the liquid with carbonateof potash, and my new dyestuff is precipitated in the form of a crystalline yellow powder, which is to be purified by solution and recrystallizing.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US256379A true US256379A (en) | 1882-04-11 |
Family
ID=2325668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US256379D Expired - Lifetime US256379A (en) | Carl rumpff |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US256379A (en) |
-
0
- US US256379D patent/US256379A/en not_active Expired - Lifetime
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